US3495A - Machine fob cutting shingles - Google Patents

Description

UNITE STAT S WM. lVOOD, OF VVESI PORT, CONNECTICUT.

OFFICE.

MACHINE FOB. `CITT'lIIINl SHINGLES.

To all whom it 'may concern Be it known that I, IVILLIAM lVooD, of lVest Port, Connecticut, have made `certain new and useful `Improvements in Machines for Cutting Shingles, Laths, Staves, Slats for VVindow-Blinds, &c`., and that the fol-- lowing schedule contains a full and accurate description `of, said improved machine and the operation of the same as invented by me.

Similar parts of said machine as given 1n the annexed drawings are represented by thesame letters of reference. j

Figure `l, exhibits a vertical, or elevated side view, of said machine, the frame of which is similar in parts, to Walcotts and other machines for like purposes. exhibits the top View, Fig. 3 the bottom, and fl, the end view. y The horizontal bed or carriage, being supported by `four parts, two upright A A,

and two inclined B B. The latter are rabbeted out, in the opposite inside corners, for the admission of theknife-gate C, in which the knife D isset in a horizontally inclined position, edge downward. Said gate and knife are operated by means of the lever E, which is connected to the bottom rail of the gate by the stirrup F, or otherwise. To one of the said rails of C, is laterally secured the rack G which gears into the pinion I-I; said pinion is supported upon one end of the horizontal shaft I, which has bearings in the boxes J, J, upon the posts of the frame aforesaid. At the opposite end of I is attached the crank K, upon the outer end of which extends a vertical pitman L, (see side views, Figs. l and 4,) to a T shaped cross head M, which is moved up and 'down by the motion of the gate C, and the intermediates G, H, I, K, and L aforesaid. The horizontal portion of the cross-head M, has a mortise or gain N, extending its whole length in which the pin O, (projecting from the ratchet lever g) is made to traverse, while the machine is in operation. Said ratchet-lever Q, is formed with a flange or tooth 1', projecting from one side, which catches successively into four notches or teeth, projected from the side of the springclutch P, which is situated upon and near the end ofthe horizontal cam-shaft Q, the extreme outer end of which shaft passes through and forms a fulcrum for the end of the ratchet-lever g. Around the periphery of the clutch I), a groove is turned out, into which is inserted the end of the disengaging lever It, by means of which said clutch is forced in and out, to and from, the ratchet lever g, and `which lever R is held by the spring-latch S, in any required position; y M

y Upon the shaft t, are three cams, one central, V, and two outside, U, U. The latter are oval, with their elipses at rightangles with each other and equidistantfrom the cam V. Said cam V, isa perfect circle upon its periphery,ibut has `four serpentine side windings or inflections, `right and left1 the projecting angles or curves of which operate as side-cams alternately, in throwing out two boltsV, l/V, from the side teeth of the double rack X. Said bolts being placed horizontally underneath the carriage a, and at right `angles with the said rack X, one `on each side ofthe same, and in a line with each other, the same being pressed into the teeth `of said rack by the spiral springs n n,

springs coiled around the same. Opposite tothe cams U, U, is placed two fenders e, e, secured tothe side of the head-block Y,

by hinge-.joints at their outer ends and supporte-d in a horizontal position by checkpins in said head-block at their opposite ends. The cam-shaft Q and head-block Y are placed laterally in a horizontal position upon the carriage u, to which said headblock is att-ached by theking-bolt b, which passes vertically through its center, and upon `which bolt said head-block has a horizontal vibrating motion. The upper end of the said king-bolt b, forms a fulcrum for the compound grappling-lever c, from which, near said fulcrum, extends two straps, or contracting rods CZ CZ, to the outer ends of which are attached the grappling hooks e, c, which hooks are formed upon the outer ends of the slides g, g, which slides move in a recess made in the upper corner of the headblock Y, where they are secured by the straps f, j", f, f. Near each end of the carriage a., is attached two cords It, 7i, whichA exten-d horizontally to and pass down over pulleys l, 2, near the gate Gr, having a weight suspended to the ends of the same. Upon the upper surface of the carriage a, is secured two set-levers la, la, which are made to sweep horizontally upon fulcrurnpins,\near their centers, and their imping- Yzontal movement of the lever c, secure said block, by the grappling hooks e, e, the knife-gate C, being now set in motion by the lever E, (or otherwise). The rack G, noiv gives motion to the cam-shaft Q. through the pinion I-I, shaft I, crank K, cross-head M, paWl-lever O, and springcli-itch P, which produces one quarter revolutionof said shaft at each ascent of the knife-gate aforesaid; and thereby brings the elliptical projections of the cams U, U, alternately against the fenders Z, Z, thereby producing the requisite vibrating motion of the head-block Y, and the consequent wedge, o-r taper to the shingles, Sac.,y cut from the bolt, or block, as before described at eacli descent of the knife D, the carriage being gradually brought up to the said knife, by the Weights upon the cords L,y h, and regulated by the spring bolts IV', IV, which bolts are alternately disengaged from the teeth of the double rack X by the central cam V as before described. i

Said machine is furnished with various racks made with graduated teeth for the different thicknesses of shingles, &c., to be cut, the taper or wedge of Which is varied by setting the elliptical cams U, U, nearer to or farther from the central cam V, which is a convenient and expeditious plan of adlustiilent` When staves, slats for Window- `blinds, &c., are to be cut, the change and adjustment of this machine is effected by raising the ends of the fenders Z, Z, to a verytical position, and thereby preventing the impingment of the cams U, U. The setlevers K,VK, areneXt brought at rightangles with the head-block Y, their ends bearing against the side of and securing the saine in a fixed position, parallel to the shaft Q,

and they knife D, as before described.

The expeditious inode of' adjustment and adaptation of this improved arrangement for cutting both tapering and parallel sided slats, as above described, I have not found equaled by any other machine for like purposes.

vWhat I claim as' my invention and desire to secure by Letters Patent as anl improvement in the above described machine, is

The combination and arrangementy of the head-.block Y with the. shaft Q, cams U,l U, and V', carriage a, and cross-head M, rack G, and pinion H, arranged in the 'manner (er that which is substantially the saine), and for the purposes set forth and described in the above specification.

New York, Februar 29th, 1844. L l WILLIAM WIG/UD. j IVitnesses:

EDMD. ELMENDORF, Jr., IVALTER HAND. l

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